Recumbent Motorcycle?

Discussion in 'The Perfect Line and Other Riding Myths' started by Thanantos, Jan 25, 2013.

  1. Thanantos

    Thanantos Ride hard.

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    [​IMG]

    This is a concept put together by the brother of a guy I went to HS with.

    Any of you engineers know how a two wheeled steering motorcycle would work?

    Watch the video....it's interesting if nothing else.

    http://www.matus1976.com/akira_bike/index.html
    #1
  2. Contevita

    Contevita Cigar Adventurer

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  3. abnslr

    abnslr rides a motorcycle

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    Had your friend just watched Akira when he designed it?
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  4. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    OMG, it's not just an on-paper rendering--he's doing it. Best of luck.

    Not familiar with the film, so I edumacated m'self:
    Seems to be an anime cult classic. May be worth digging up.

    --Bill
    #4
  5. Thanantos

    Thanantos Ride hard.

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    That's the name of the project so I am sure it had a significant influence.
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  6. itsatdm

    itsatdm Long timer

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  7. Thanantos

    Thanantos Ride hard.

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  8. abnslr

    abnslr rides a motorcycle

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    Yeah, that's what I get for just looking at the picture instead of actually paying attention to the post... :lol3
    Nevermind, carry on then!
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  9. vortexau

    vortexau Outside the Pod-bay

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    Two different subjects-
    for Two Wheel Steering try the 2x2x2

    . . . thats for Two-Wheel-Drive, Two-Wheel-Steer, Two-Wheeled-Bike!

    [​IMG]





    Now, as to recumbent-form motorcycles try the British style of FFTs:

    Starting with the Reliant-engined Quasar, various custom builders in the UK were inspired to try to produce their own low-down Foot-Forward (Tourer)-style motorcycle.

    [​IMG]

    Wikipedia- Quasar (motorcycle)

    [​IMG]


    [​IMG]
    Creasey-Difazio CX500 Flying Banana (1981)



    Read This First - Introduction to FF two-wheelers

    Benefits?
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  10. DAKEZ

    DAKEZ Long timer

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    Do you know what a Ford GT40 is? Not the new Ford GT... The original one that was 40" tall.

    The bump in the roof above the Driver is called a Guerney Bubble. It was added because he was too tall to fit in the car with a helmet on.

    [​IMG]
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  11. markk53

    markk53 jack of all trades...

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    Wasn't the first chopper a recumbent? :D
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  12. vortexau

    vortexau Outside the Pod-bay

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    Basically similar form factor, as regards the seating but not all choppers keep the engine (AND fuel tank) low mounted.

    [​IMG] Eyeball that fuel tank?



    Now check out the fuel tank on this 1922 Ner-a-car:

    [​IMG]


    [​IMG]

    Wilkinson Four built by the Wilkinson Sword (razor) Comany of England. Rider (late) Rex Judd, former 20s-30s Brooklands racing rider.


    [​IMG]

    1920 Militor
    - Many early motorcycle builders positioned the foot boards well forward even if the rider's seat wasn't particularly low set.
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  13. vortexau

    vortexau Outside the Pod-bay

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    [​IMG]

    Electric recumbent? EV World story


    [​IMG]


    Unfortunately, nothing further since 2006.
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  14. Avocet

    Avocet Been here awhile

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    I like being up high where I can look over cars in front of me. Also, when you sit up high you're more visible to car drivers. Some of those low-slung recumbent ideas seem to suffer in both those departments.

    Thinking about two-wheel steering on a motorcycle. If you want to turn left and counter steer to move the front wheel right, to help you lean left, wouldn't the rear wheel of a two-wheel steered bike move to the left, bringing the bike back upright again just when you want it to lean? I think that maybe two wheel steering just doesn't work on a motorcycle.
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  15. DC2wheels

    DC2wheels Castle Anthrax troll

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    [​IMG]
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  16. Thanantos

    Thanantos Ride hard.

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    This was my original question. Two wheel steering doesn't seem like it would work....at speed anyway.
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  17. ibafran

    ibafran villagidiot

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    Motorcycle Consumer News had a test if Gurney's Alligator. Following issues had letters to the editor regarding handling. Tony Foal had to reply to the letters to make the handling issues understood.

    And I agree with the poster who is concerned that it is too low for real world traffic. Most recumbant bicyclists around here fly a flag to be seen in traffic. The flag looks awefully small to me when I notice it.
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  18. Thanantos

    Thanantos Ride hard.

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    Can you give a summary of the handling issues?

    Sent from my M9300 using Tapatalk 2
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  19. RVDan

    RVDan Long timer

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    I don't remember a lot of it, but my impression of the complaints were all about it being different than what they were used to, like it needs a whole lot less counter steer to initiate a turn
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  20. vortexau

    vortexau Outside the Pod-bay

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    May be time to resurrect this thread as-
    Honda's 750cc NM4 Vultus: A new species of motorcycle
    with this entry mimicking the DN-01 of six years back; though with a 270ยบ parallel twin of 745 cc (instead of a V-Twin of 680cc), and with chain final drive instead of a shaft.

    Tuned so, while it has 10kW less power than the illustrious 1969 CB750 Four, it features 8 Nm more torque at two-thirds the engine revolutions and uses less than HALF the amount of fuel to travel similar distance!

    [​IMG]

    And before American motorcycle riders begin their derisive responses - keep in mind that the LARGEST percentage of potential riders for this offering are under 5' 7" in height:

    [​IMG]
    Gizmag reminds us that "More people live inside this circle than outside. "
    #20